Tire-tightener



UNITED STATES PATIENT OFFICE.

, HENRY lVIDDOlVS, OF NElVMAN, ILLINOIS.

TIRE-TIGHTEINER.

SPECIFICATION forming part of Letters Patent No. 447,390, dated March 3,1891.

Application filed June 20, 1890. Serial No. 356,055- No model.)

onois, have invented certain new and useful Improvements inTire-Tighteners; andI do hereby declare that the following is, a full,clear, and exact description of the invention,

which will enable others skilled'in the art to' which it appertains tomake and use the same.

This invention relates to tire-tighteners; and it has for its object toprovide a device of this character which will serve the twofold purposeof tightening the tire and retaining the latter in place.

A further object of the invention is to provide a simple and improvedtire-tightener which will posses advantages in point of inexpensiveness,ease of operation, durability, and general efficiency.

In the drawings, Figure 1 is a perspective view of a vehicle-wheelhaving my improved tire-tightener applied thereto. Fig. 2 is a detaillongitudinal sectional view of the same. Fig. 3 is a detail transversesectional view. Fig. 4 is a detail perspective view of the partscomprised in the invention detached. Fig. 5 is a perspective view of thetightening device.

Corresponding parts in the figures are denoted by the same letters ofreference.

Referringto the drawings, A designates a wheel provided with my improvedtire-tightener B, disposed between the opposing ends of two or moresections of the telly a. The tighener B comprises two corresponding capsmounted upon the opposing ends of two sections of the felly, a portionof one or both said sections being cut away to form an intervening spacebetween the caps. The latter consist of approximately U-shaped plates(1,

embracing the ends of the felly-sections, and

are provided with outward extensions 0, projecting beyond the telly andat each side of the tire to retain the latter upon the felly.

0 designates face-plates disposed over the end faces of thefolly-sections and secured to or formed integral with the plates 0. The

opposing plates Oare respectively provided with right and left handscrew-threaded perforations c 0 I) designates the tighleningscrew formedperforations a, provided in the felly. The

portion cl is provided with transverse holes or perforations d d atright angles to each other and adapted to receive an adjustingrod fortightening the screw.

.For filling the space formed between the tire and the portion (1 of thetightening-screw and preventing an accumulation of earth or othersubstance therein, I provide a block E. The latter has its inner faceformed concave, adapting it to fit over the periphery of the portion d,while its outer face is slightly convex to conform to the periphery ofthe felly.

To further insure the tire against displacement from the felly,approximately U-shaped plates F are provided, embracing the felly atpoints thereon and projectingbeyond the same at each side the tire, saidplates being secured to the felly by screws or rivets f.

The operation and advantages of my invention will be readily understoodby those skilled in the art to which it appertains. To

effect the tightening of the tire, the perforations cl' in the screw areengaged by a suitable rod or bar and the said screw turned in adirection to throw the opposing ends of the felly-sections fartherapart, thereby enlarging the periphery of the wheel and binding the sameagainst the tire. The plates 0, projecting at each side the latter,serve to retain it against displacement from the felly,

while by the employment of the block E the advantages of a continuousfelly are retained.

I claim as my inventi0n- 1. In a tire-tightener, the combination, withthe tightening-screw disposed between the opposing ends of twofelly-sections and comprising right and left hand threaded extensionsand the central cylindrical portion, of a filling-block provided with aconcave inner face corresponding to the periphery of said circularportion and adapted to be disposed between the latter and the tire,substantially as and for the purpose set forth.

2. Ina vehicle-wheel, the combination, with a tire-tightener comprisingopposing caps mounted upon the opposing ends of the two felly-sectionsand provided, respectively, with right and left hand screw-threadedperforations, said caps being extended over the said edges of the tire,and a tightening-screw provided with right and left hand screw-threadedextensions engaging the correspondinglythreaded perforations in the cap,and with a central cylindrical portion, of a filling-block provided witha concave inner face and a diametrically-convexed outer face, said blockconforming to the contour of said circular portion and the tire andadapted to be disposed between the same, substantially as and for thepurpose set forth.

3. In a tire-tightener, the combination, with

